Review on 🔌 Optimized Plug and Play T-Harness for TO2 Toyota Vehicles: Maestro HRN-RR-TO2 by Ryan Koser

Now that all is said and done I love using the idatalink maestro RR despite the complexity of the installation, Set up programming and pairing . That being said, this wiring harness is a mess and largely incompatible with non-JBL 2013-2014 Rav4s and possibly some 2015 models as well. Before I go into what has been explicitly and intentionally left out, it is important to know - for all vehicles - that this is not a full interface. None of the vehicles are equipped with: GPS antenna, radio antenna or hands-free microphone. All of this requires adapters or replacements. To be fair, neither this wiring harness nor the Maestro RR module claims to replace those features, just annoying with the amount of wiring you'll be getting. The interface does not work on the vehicles listed above. This is a factory USB port and rear camera. The USB cable is not a starter for this vehicle. The t02 to USB adapter is an additional $40 and for some weird reason it's sold out everywhere. so the cable will likely need to be hacked or the USB port replaced. The rear view camera for the 2013-14 and possibly 2015 RAV4 is a 16-pin cable, while the Maestro has something like a 24- or 26-pin cable. The odd thing is that unlike all the other wires in the harness, the rear camera cable is modular and the harness only comes with one adapter. which is hard to tell otherwise, but the Maestro wanted to fit a 16-pin adapter but decided against it. They don't do any. If you inevitably call their rightfully excellent tech support, they'll email you instructions on how to cut the factory wires and connect them to this harness. As an alternative and better option: Metra hasn't messed with the RAV4 at all, and they sell a proper backup camera wiring harness for about $15. You can cut it and the large mismatched connector off the Maestro wiring harness and wire the Metra adapter using the wire code instructions provided by Maestro Customer Service. Yes, it's a pain, but it will be a clean uninstall if needed. which is why you might pay $40 for a pre-made T-Strap. Also the aux input has questionable support, I can't claim to have it installed but as it doesn't communicate with the USB/aux port and I can't imagine where the composite video input on my rav4 ( I'm humble, it's not), I should assume that the wires don't do anything. Here are the parts you will need in addition to the main unit and Maestro RR module to install the Rav4: A new GPS antenna, if required. AM/FM antenna adapter. A new microphone or a way to connect to a factory device. OEM USB adapter if available. Tubing (these should all be soldered together to save space, wire nuts or insulated crimps are difficult to wrap and are likely to get tangled when assembling the harness) Some sort of harness to hold everything together. h additional adapters and consumables, unless your new radio includes some of them. As a result, the loom with all the extra adapters is an unholy mess of wires. This wiring harness is too short to install an RR module, it's a neat remote location so all the wire is somewhere under your radio.